/Engine/Source/Runtime/GeometryCore/Public/Deformers/Kelvinlets.h
Implement the "Locally affine regularized Kelvinlet" from "Regularized Kelvinlets: Sculpting Brushes based on Fundamental Solutions of Elasticity" - de Goes and James 2017
class FAffineKelvinlet : public [UE::Geometry::TBaseKelvinlet< FAffineKelvinlet >](API\Runtime\GeometryCore\Deformers\TBaseKelvinlet)
double
E2
FMatrix3d
F
Force Matrix.
FMatrix3d
SymF
2 * symmetric part of F + trace.. : F + F^T + I Trace(F)